Method for applying hardfacing to a matrix substrate of a drill bit

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United States of America Patent

PATENT NO 9481057
APP PUB NO 20140102011A1
SERIAL NO

14107952

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Abstract

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A method for hardfacing a drill bit includes applying a hardfacing material to a matrix metal forming the substrate of the drill bit. The hardfacing material is applied using a plasma arc welding process. A metallurgical bond is formed between the matrix metal and the hardfacing material. The matrix metal may include tungsten carbide and a braze filler metal.

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Patent Owner(s)

Patent OwnerAddress
VAREL INTERNATIONAL IND L P1625 WEST CROSBY SUITE 124 CARROLLTON TX 75006

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amundsen, Marvin Windsor Houston, US 8 16
Johnson, Charles Daniel Porter, US 11 284

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